Novel jig for terminal crimping

Abstract

The utility model discloses a novel jig used for terminal crimping. The stamping device comprises a supporting frame, a lower die arranged below the supporting frame and used for positioning an external connecting piece, a stamping air cylinder arranged on the supporting frame, an alignment detection device arranged behind the lower die and used for limiting and detecting the external connecting piece, a delayer arranged on the side of the supporting frame and a control pedal used for starting the alignment detection device, the terminals are conveyed to the lower die manually or through a feeding mechanism. The alignment detection device used for stopping and positioning the outer connecting piece is arranged behind the lower die, after the outer connecting piece is placed on the lower die and inserted into the terminal, the control pedal is stepped down, and the alignment detection device forwards makes contact with the end of the outer connecting piece for alignment and positioning; and the stamping cylinder is controlled to work to crimp the terminal and the external connecting piece after the time is delayed by the delayer, and the alignment detection device is pressed against the end part of the external connecting piece, so that the external connecting piece and the terminal do not generate displacement when the stamping cylinder crimps the terminal.

Description

Technical Field:

[0001] The utility model relates to the technical field of terminal assembly, and particularly refers to a new fixture for terminal crimping. Background Art:

[0002] Terminal crimping is a process method that tightly connects a wire and a metal terminal through mechanical pressure. It is widely used in industries such as electronic manufacturing, electrical equipment, and automotive wire harnesses to achieve reliable electrical and mechanical connections. Through terminal crimping, the conductor part of the wire is crimped onto the metal contact surface of the terminal, forming a firm connection point, thereby ensuring electrical conductivity and connection stability. Compared with welding, terminal crimping has the advantages of simple operation, high efficiency, high connection strength, and good stability. It can effectively reduce the contact resistance, improve the electrical transmission efficiency, and at the same time enhance the mechanical strength of the connection, enabling it to remain stable under the influence of external forces such as pulling and vibration. The terminal crimping process is also suitable for mass production and can be precisely controlled by automated equipment such as a terminal crimping machine to ensure the quality consistency and reliability of each crimping point. Therefore, it is widely used in various electrical and electronic devices that require high connection reliability.

[0003] The utility model patent with the Chinese patent authorization announcement number CN204067803U discloses a terminal automatic crimping machine, which includes a feeding device, a cutting device, a feeding device, and a crimping device. During operation, the terminal 25 moves orderly towards the cutting position through the dialing device 12. The tape 24 moves to the upper end surface of the secondary cutting knife 19 through the discharge end of the conveying device. When the cutting part 251 of the terminal moves to the main cutting edge 171 and the secondary cutting edge 191, the conveying device stops. The claw 09 moves downward under the action of the second cylinder 07 and drives the positioning pin 21 to press down. The needle tip 212 of the positioning pin passes through the tape hole 241 of the tape to position the terminal 25 to be cut. The driving cylinder 14 moves upward, and under the action of the rocker 15, the main cutting knife 17 moves downward, causing the main cutting edge 171 to cut the cutting part 251 of the terminal. The clamping end 91 of the claw grabs the cut terminal 25. The first cylinder 04 starts and drives the claw 09 to move along the cross beam 05 towards the headphone jack 27 on the material rail 02. After moving to the headphone jack 27 and stopping, the second cylinder 07 drives the claw 09 to move downward to crimp the terminal 25 onto the headphone jack 27. The cut tape 24 of the terminal is conveyed downward along the baffle 10. Repeating this process realizes the automatic cutting of the terminal 25 and the automatic crimping of the terminal onto the headphone jack 27.

[0004] In the above solution, since the terminal 25 will move when being extruded during the crimping process, it is difficult to keep the matching position of the crimped terminal 25 and the headphone jack 27 consistent, resulting in a large number of defective products.

[0005] In view of this, the inventor of the present invention proposes the following technical solutions. Summary of the Invention:

[0006] The purpose of the present invention is to overcome the deficiencies of the prior art and provide a new fixture for terminal crimping.

[0007] To solve the above technical problems, the present invention adopts the following technical solutions: A new fixture for terminal crimping, comprising a support frame, a lower mold disposed below the support frame and used for positioning an external connector, a stamping cylinder disposed on the support frame and above the lower mold, a positioning and detection device disposed behind the lower mold and used for limiting and detecting the external connector, a delay device disposed beside the support frame and electrically connected to the positioning and detection device and the stamping cylinder, and a control pedal for starting the positioning and detection device. Among them, the terminal is sent to the lower mold manually or by a feeding mechanism. After inserting the external connector into the terminal on the lower mold, the positioning and detection device limits the insertion position of the external connector, and the delay device receives the signal that the external connector is in place, and controls the stamping cylinder to move downward regularly to complete the crimping of the terminal and the external connector.

[0008] Furthermore, in the above technical solution, the positioning and detection device includes a sensor capable of extending into the lower mold to contact the external connector and position and limit it, and a first cylinder for pushing the sensor to extend into and withdraw from the lower mold.

[0009] Furthermore, in the above technical solution, an upper mold for crimping the terminal is detachably mounted on the stamping cylinder. A first positioning groove for positioning the external connector and the terminal is provided on the lower mold, and the first positioning groove is directly opposite to the positioning and detection device.

[0010] Furthermore, in the above technical solution, the feeding mechanism includes a guide rail disposed on the support frame and perpendicular to the stamping cylinder, a movable mounting seat disposed on the guide rail and used for mounting the terminal material, a feeding control platform disposed beside the lower mold and used for feeding, positioning and adjusting the material, and a second cylinder for driving the movable mounting seat to move.

[0011] Furthermore, in the above technical solution, a limiting block for blocking and limiting is further provided on the support frame beside the stamping cylinder. The limiting block is beside the guide rail and used for contacting and limiting the movable mounting seat.

[0012] After adopting the above technical solution, the utility model has the following beneficial effects compared with the prior art: In the utility model, a positioning and detection device for positioning and stopping the external connector is arranged at the rear of the lower die. When the external connector is placed on the lower die and inserted into the terminal, by stepping on the control pedal, the positioning and detection device moves forward to contact the end of the external connector for alignment and positioning. After the positioning and detection device detects contact with the external connector, it sends a signal to the delay device. After a preset delay time of the delay device, the stamping cylinder is controlled to work to crimp the terminal and the external connector. At this time, the positioning and detection device is used to press against the end of the external connector to ensure that the external connector and the terminal will not displace when the stamping cylinder crimps the terminal, thereby ensuring the quality of the crimped product. Brief Description of the Drawings:

[0013] Figure 1 is the structural schematic diagram of the utility model Figure 1 ;

[0014] Figure 2 is the structural schematic diagram of the utility model Figure 2 . Detailed Embodiment:

[0015] The following further describes the utility model in conjunction with specific embodiments and drawings.

[0016] See Figure 1 and Figure 2 As shown, it is a new fixture for terminal crimping, which includes: a support frame 1, a lower die 2 arranged below the support frame 1 and used for positioning the external connector, a stamping cylinder 3 arranged on the support frame 1 and above the lower die 2, a positioning and detection device 4 arranged at the rear of the lower die 2 and used for limiting and detecting the external connector, a delay device 5 arranged beside the support frame 1 and electrically connected to the positioning and detection device 4 and the stamping cylinder 3, and a control pedal for starting the positioning and detection device 4. Among them, the terminal is sent to the lower die 2 manually or by a feeding mechanism 7. After inserting the external connector into the terminal on the lower die 2, the position where the external connector is inserted is limited by the positioning and detection device 4, and the delay device 5 receives the signal that the external connector is in place, and controls the stamping cylinder 3 to move downward regularly to complete the crimping of the terminal and the external connector. A positioning and detection device 4 for positioning and stopping the external connector is arranged at the rear of the lower die 2. When the external connector is placed on the lower die 2 and inserted into the terminal, by stepping on the control pedal, the positioning and detection device 4 moves forward to contact the end of the external connector for alignment and positioning. After the positioning and detection device 4 detects contact with the external connector, it sends a signal to the delay device 5. After a preset delay time of the delay device 5, the stamping cylinder 3 is controlled to work to crimp the terminal and the external connector. At this time, the positioning and detection device 4 is used to press against the end of the external connector to ensure that the external connector and the terminal will not displace when the stamping cylinder 3 crimps the terminal, thereby ensuring the quality of the crimped product.

[0017] The alignment detection device 4 includes a sensor 41 that can extend into the lower die 2 to contact the outer connector and position and limit it, and a first cylinder 42 for pushing the sensor 41 to extend into and withdraw from the lower die 2. The stamping cylinder 3 is detachably installed with an upper die 6 for crimping the terminals. The lower die 2 is provided with a first positioning groove 21 for positioning the outer connector and the terminals, and the first positioning groove 21 is directly opposite to the alignment detection device 4. Among them, the upper die 6 can be detachably replaced to achieve the crimping of terminals of different models.

[0018] The feeding mechanism 7 includes a guide rail 71 disposed on the support frame 1 and perpendicular to the stamping cylinder 3, a movable mounting seat 72 disposed on the guide rail 71 and used for mounting the terminal material, a feeding control platform 73 disposed beside the lower die 2 and used for feeding, positioning, and adjusting the material, and a cylinder 74 for driving the movable mounting seat 72 to move. The support frame 1 is further provided with a limit stop 8 located beside the stamping cylinder 3 and used for blocking and limiting. The limit stop 8 is located beside the guide rail 71 and used for contacting and limiting the movable mounting seat 72.

[0019] In summary, when the present utility model works, first, the terminal raw materials are installed in the feeding mechanism 7, and the feeding mechanism 7 transfers the terminals to the lower die 2 one by one; further, the outer connector is manually docked to the terminal on the lower die 2, and then by stepping on the control pedal, after the detection device 4 receives the signal, the first cylinder 42 will push the sensor 42 into the lower die 2 to contact and press against the outer connector; further, after the sensor 42 contacts the outer connector, it will position and limit the outer connector to ensure that the outer connector will not move forward, and at the same time send a signal to the delay device 5; further, when the delay device 5 receives the signal, it starts timing, and after reaching the preset time, it sends a signal to the stamping cylinder 3, and the stamping cylinder 3 pushes the upper die 6 down to crimp the lower terminals and the outer connector; finally, after the crimping is completed, the stamping cylinder 3 drives the upper die 6 to rise back to the original position, then, the first cylinder 42 of the detection device 4 pulls the sensor 42 back to the original position, and then, the operator removes the outer connector crimped with the terminal to complete the entire crimping process.

[0020] Certainly, the above are only specific embodiments of the present utility model, and are not intended to limit the scope of implementation of the present utility model. Any equivalent changes or modifications made according to the structure, features, and principles described in the scope of the patent application of the present utility model should be included in the scope of the patent application of the present utility model.

Claims

1. A new fixture for terminal crimping, characterized in that, Including: A support frame (1), a lower die (2) disposed below the support frame (1) and used for positioning an external connector, a stamping cylinder (3) disposed on the support frame (1) and above the lower die (2), a positioning and detection device (4) disposed behind the lower die (2) and used for limiting and detecting the external connector, a delay device (5) disposed beside the support frame (1) and electrically connected to the positioning and detection device (4) and the stamping cylinder (3), and a control pedal for starting the positioning and detection device (4). Among them, the terminals are sent to the lower die (2) manually or by a feeding mechanism (7). After inserting the external connector into the terminals on the lower die (2), the position where the external connector is inserted is limited by the positioning and detection device (4), and the delay device (5) receives the signal that the external connector is in place, and controls the stamping cylinder (3) to move downward regularly to complete the crimping of the terminals and the external connector.

2. The novel jig for terminal crimping according to claim 1, characterized in that: The positioning and detection device (4) includes a sensor (41) capable of extending into the lower die (2) to contact the external connector and position and limit it, and a first cylinder (42) for pushing the sensor (41) to extend into and withdraw from the lower die (2).

3. A novel jig for terminal crimping according to claim 1, characterized in that: The stamping cylinder (3) is detachably mounted with an upper die (6) for crimping the terminals. The lower die (2) is provided with a first positioning groove (21) for positioning the external connector and the terminals, and the first positioning groove (21) is directly opposite to the positioning and detection device (4).

4. A novel fixture for terminal crimping according to claim 1, wherein: The feeding mechanism (7) includes a guide rail (71) disposed on the support frame (1) and perpendicular to the stamping cylinder (3), a movable mounting seat (72) disposed on the guide rail (71) and used for mounting the terminal material, a feeding control platform (73) disposed beside the lower die (2) and used for feeding, positioning and adjusting the material, and a second cylinder (74) for driving the movable mounting seat (72) to move.

5. A novel jig for terminal crimping according to claim 3, characterized in that: The support frame (1) is further provided with a limit stop block (8) disposed beside the stamping cylinder (3) and used for blocking and limiting. The limit stop block (8) is disposed beside the guide rail (71) and used for contacting and limiting the movable mounting seat (72).

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